J/MNRAS/480/467ivo://CDS.VizieR/J/MNRAS/480/467doi:10.26093/cds/vizier.74800467CDSPande D.Bedding T.R.Huber D.Kjeldsen H.2024-08-18T20:21:25Z2022-05-17T13:14:39ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frasteroseismologyWe have developed a method to estimate surface gravity (log g) from light curves by measuring the granulation background, similar to the 'flicker' method by Bastien et al. (2016ApJ...818...43B, Cat. J/ApJ/818/43) but working in the Fourier power spectrum. We calibrated the method using Kepler stars for which asteroseismology has been possible with short-cadence data, demonstrating a precision in log g of about 0.05dex. We also derived a correction for white noise as a function of Kepler magnitude by measuring white noise directly from observations. We then applied the method to the same sample of long-cadence stars as Bastien et al. We found that about half the stars are too faint for the granulation background to be reliably detected above the white noise. We provide a catalogue of log g values for about 15000 stars having uncertainties better than 0.5dex. We used Gaia DR2 parallaxes to validate that granulation is a powerful method to measure log g from light curves. Our method can also be applied to the large number of light curves collected by K2 and TESS.2018MNRAS.480..467Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/480/467CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/133 : Kepler Input Catalog (Kepler Mission Team, 2009)J/ApJ/818/43 : Stellar surface gravity measures of KIC stars (Bastien+, 2016)J/ApJS/229/30 : Revised stellar properties of Q1-17 Kepler targetshttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/480/467https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/480/467http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/480/467https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/480/467https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/480/467http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/480/467GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/480/467/table1 (Estimates of granulation power, vmax and logg for 15109 stars using Kepler long-cadence data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/480/467/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/480/467/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/480/467/table1?GETtext/xml+votable180.050000true290.9030536.76726890.0055555555555555564/922-923 933-935 944-946 5/3645-3647 3683 3704 3706 3729-3731 3760 3765 3788-3789 3792-3793 6/14559 14567 14573 14575 14577-14579 14730-14731 14738 14744 14746-14747 14749-14751 14792 14794-14795 14822 14828 14830-14831 14914-14915 15044-15045 15057 15059 15160-15161 15176 15178 15200 15232-15233https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/480/467?format=asciidefaultJ/MNRAS/480/467/table1Estimates of granulation power, vmax and logg for 15109 stars using Kepler long-cadence datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKICKepler Input Catalog identifier (Cat. V/133)meta.id;meta.mainintKpmagKepler magnitudemagphot.mag;em.optdoubleTeffEffective temperature (1)Kphys.temperature.effectiveinte_TeffEffective temperature error (1)Kstat.error;phys.temperature.effectiveintPgranGranulation power(10-6)2/uHzsrc.var.amplitudedoublee_PgranGranulation power error(10-6)2/uHzstat.errordoublevmaxFrequency of maximum oscillation poweruHzem.freq;stat.maxdoublee_vmaxFrequency of maximum oscillation power erroruHzstat.errordoubleloggSurface gravitylog(cm.s**-2)phys.gravitydoublee_loggSurface gravity errorlog(cm.s**-2)stat.errordoubleM2017Display the Mathur et al. (2017, Cat. J/ApJS/229/30) datameta.ref.urlchar_RAPositions of KIC stars from KIC catalog (V/133) (right ascension part)degpos.eq.ra;meta.mainindexed_DEPositions of KIC stars from KIC catalog (V/133) (declination part)degpos.eq.dec;meta.mainindexed